Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/MicroDexed/src/commit/a4bc2b18448594c4a46e47208c4f7d7ec53c3c2b/third-party/USBHost_t36/examples/MIDI/Interface_16x16
You should set ROOT_URL correctly, otherwise the web may not work correctly.